Atid blast heating



GAS GENERATING AND vBLAST 'HEATING APPARATUS FOR MBTALLURGIGY URPOSBS'.

ND OTHER P 1 *Patented Jan. 24, 187.1"

Maw/XW.. 4

To `.all 'whom it may concern:

of the same or like construction .TMES'nWHELPLEY ANDJAGOBJ. s'ronER,v oFBosToN,-nAssAcHUsETrs.

.lnrnoyenrnr iN'eAs-QENERAT'ING'AND Busi-HEATING APPARAT-usroMETALLuRGlc AND Specification forming part of Letters Patent No.. l l,28, dated January 24,1871,

B e it known that. welhams D. WHELPILEY' and JACOB'J. STGRER, of Boston,inthe county oiSuft'olk and State of `Massachusett s, have" inventedanew and useful Improvenientuin Gas-Generatiug and Heating Apparatustand'. we hereby declare the following to be affull and exactdescription of lthe same, reference being had to the accompanyingdrawing, which fol-insa part of this specification. fi;-

Figure l is a cross-section and elevation the line Y and plan lview andhorizontal'sectiou online X X, and Fig. 3 isl avertical section on lineZZof Fig. 2.

l combined gas-generator and hot-blast appara-1,; Ins, which maybe usedin thelworking or manu;A facture of ores, metals, chemicals, glass,&c.,'.

for the generation of steam, audfordistille tion, evaporation, 85e'.blow-pipe, which may be economically applied to these and many otherpurposes, andV to reverberatory 'and other furnaces, in lieufot th'e.

present or Aordinary re-plac-zes, llt may vbe used with pulverized fuel,according to our patented methods of burning such fuel, and in thatrespcctis a modication and improvement on tlieinvention described 'inour Patent No. V109,785,'dated'Noyember 29,1870. In that' patent theblast-heati'n g apparatus is separate from the gas-generator,beingheated by waste beat from the furnace.-

In our present invention' they are united, so that.the air which servesfor the hot blast is heated in the generator.

For blast-furnaces 'where hot blast is used the air is often heated inovens or chambers to this of ours, the air-pipes, too, being placedinalike position to ours; but only the heated air is ap'- plied or utilizedin the blast of the blast-furnace, not'the produetsof the combustion of'.the fuel heating the air.

Ve use and afpplynotonly thevhct air heated inpassing through the pipesby the fue-lin the generator, but also the gases formed by thecombustion ot' said fuel.

By our method so little air is admitted into Y'of Fig. 3. Fig, 2isa'horizontal' The saule letters indicate like parts infall..theiigures., Y 1;5 -The objectof the invention is to produce thegeneratorftbat the escaping gases are al most ble, carbonio oxide vandhydrogen-,with a min'- i'mum vof uncombined oxygen' and ,carbonic thegenerator at a high temperature,have the .hotlairV blastimlnediatelydirected upon Vand mingled with'th'em, and thus a blow-pipeflame a furnace of 'any'capacity','or may b`e,'accord to theV desiredcapacity of .a smau fu,.mwe -CUPCli-mnflie, or forge, 850, i y tonstrated that anair-blast heated t'o 500G-Fahr- Aheated stearine, willfuse'platinumv and, other vmaterials heretofore considered refractory tovPipehot-air blast and gasesor.vaporsfotfcarbon, hydrocarbon, hydrogen,or other gases, but is `a convenient means of which the gases may-beproduced,

for use; but our invention includes' the use, when desirable, ofpulrerized fuel in vvfiid or in modification of such blow-pipe llame.

Siemen hasstated that the gases pas'sin from his generators 4to thefurnacev or lire-po through the gas-conductors lose af'largejpor tion oftheir heat, (about nine-tentlis, or 11000 Fahrenheit,) and that thiscooling ofthe current 'of gas, inducing a Siphon action intheconductors, is necessary to thel correct workf ing ot his apparatus.

this is incurred, but the gases escaping from the heat with the hotblast; consequently-this process is operated with much less 'expenditureof Apower-. 6,', loss of heatthan is that of Siemens, and lunch time issarediby heating the blast, in the generator ratherathan in of afurnace.

thisA coinbined gas-generator and hot-blast apfparatus maybe such aswill make itmost easy purely carbonic oxide, or," whenl desiraacid.vThese'gisea'escapingtat the' outlet ot'- of 'great intensityis`creat'ed, wh'jclnes'will be seen, may' be'1nade of sufficient .volumetoill lng to theifsize of the' apparatus, diminished Recentexperiments'in Englandfliavedcim enheit, 'combined with the gas or vapor from anyinfluence excepting the oxyllydrogen blou'- ,Onr invention vis n'ottbecombination 0f the l and economical,- a'p'paratus', by v the air-blastheated, and the two-4 combined By our arrangement no suchloss ofheatiasV generator meetl and combine at their full.'

.a socalled regenerator, or by the waste heat The shape and manner ofconstruction of of lappl ication tothe furnace, heilen-or other, purposeto which it -is desiredtto epply i t "For v some purposes andapplications 1t. 1ney be Aa brick onolay lined iron cylinder,containingV be a square-or `cylimlricalpermanent ot' brick, properlystrapped-..wit h usual lire-pot;I It may bellned or'construeted. withany refractory material, and thel'hotslir pipes may be setvvertically,as shown in (li-asv ing, or horizontally or -in coils, and the gasexitmay be atthe most' convenient Ypointfor.

. service. Theblast'mey-be'furnished. by-fanbloWer, bellows, oranyotbersuitable apparat 'is obvious that by simpleaflju'stmentoftbesnppiy of airand fuel-an oxidizing,V new trai, or reducing ila-me maybe'obtainedjat pleesnrelts value -above :all: other meth ods of obtain-Lin'g and applying' beat for metallurgie-and chemical-i pnr1'ioses,andforl the beatingoitub- The gas and hot-air. jets maybelistributed "by,means. of separate tubes oriiu'em-so aste be projected at deren'tpointsupou or: about the work to whichitis applied.; end' pulverizedfuel, when usedin combiiiation=witb thisv apparatus, may v be projectedabove or .below tbe column yrf-'hot air, es' may bei'ound moetvvefficient to produce desired eii'ects.

- The following. descrip on fwiilienableany one to make and use ouriuven'tiom. r

ln' the drawing, 'A is the .body of the'gas? generator, with grate-barsB and ash-'pit Gn Surrounding theg'enera'tor is 'a ledge-or wall,'

D, leaving aspace between saidledge and the walls ot' the generator-,1inwhich are -pleced pipes E, forvhezttingthe eirused'asfblast. Theges-generator. A is ychargedwithcoal in the. mannerI well known ingenerating carbonio oxide and other gases, .,Andraftorforcedblast enterstheffuel through'the-'grntebwrsg The lepth'of' coal on "the gratebars-sllonliibekept 'thick-'bycliargingfthrough thefeedoor F; As so :m'='eslvthe-"coal or otherlfuelbecomes. Welll ignited', oolil'air isforoedfthrough pipes E by HE LQSS ahy tiene blast v-appamfns, attachee'et G.'

lo passing through the zpipes E the' -air' -is heated, and leaves by thehot-air'pipe, (showny in' Fig. 1,) whereit vmingles with the gas fromthe gas-generator, and, together or in. combi nation with it, isprojected into the furnace, oupel, mue, or 'uude'rthe boiler, vo r uponthe work for which lit' is intended. 'Anycinder 'that accumulates mayberemoved through K,

The ga.'sas formed, passes from the generator through opening I, and thehot air through H..

Pulverizfed fueimaybe applied,when desired, through pipe P, Fig. 1,and-either above or be' low tbehot-air blast., ortbe 'apparatus may beused and applied without the pulverized fuel.

V,.Fig. 1, is 'valveV inthe hot-air pipe,'to

.regolate the llpply'offhot lair required forv work. O, 'Fi-gil, is a'bra-richtet hot-air'pipe, Y iitt/edwitb valve Q. When'Vis-elosed 'and Qopened, all the' liotair will p .out of tbe branche@- into the open air.It isobvious, then, that by'proper errangementof' the-two valves 4anydesiredproportion ofi-hot airfor the 'required action oftheblow-piperean be had.

:When the valve' E1is-closed,-or 'nearly=so, the pipes E woxiid beindanger of olestruction "were itsot-fortbe' branchl and; safety-*valve@which permit ai'eonstantand v'full csrrentof 4air to-passthrongh them.`v

. Hevin'gfthue desoribedfonr'inventien, @vliet we claim, and desire tosecure byfleetters Petent of the UeitedrStates, is

1. The improved gas-generatorenilblestheating epparatos combined,subsmntially es, 'and for the purposes described.

- 2., v".llhe improved f gesgenerator anti blastheatingapparetns,substantiallyas 'iieseribeh combined with theMesnil-application olf-pnl- 'verizet fuel,siibstau'tiallyy as described.

the vhet -gases 'and products of combustion from an' oven usedfforheating e.A blast otvair,

-Ain combination with the-heated blast,- substantiallyjesraniiftbrthepurposes described.

. JACOB J.,STOl.tER.

1 -Witnessem y e CHARLES-M Nxoxeeson, Y. .v FRED-W. LoNofLlinr.`

3. Thentilization-or eouversion intense o'i emi/iss o. Wasn-ener..

